Lifting hook



FIG. 1 is a side elevation of a lifting hook of my design;

FIG. 2 is a left-hand end elevation thereof;

FIG. 3 is a right-hand end elevation thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is an elevation showing the opposite side of the lifting hook of FIG. 1; and,

FIG. 7 is a sectional plan view taken as indicated by the line 7--7 of FIG. 6. 

The ornamental design for a lifting hook, as shown and described. 